Highest IVs per Type
This table gives you the highest possible IVs that give a 70 base power Hidden Power, and for each possible type. A bit sloppy, but it's not that bad. :3
Type HP Atk Def Spd Spec Atk Spec Def
Bug 31 31 31 30 31 30
Dark 31 31 31 31 31 31
Dragon 30 31 31 31 31 31
Electric 31 31 31 31 30 31
Fighting 31 31 30 30 30 30
Fire 31 30 31 30 30 31
Flying 31 31 31 30 30 30
Ghost 31 30 31 31 31 30
Grass 30 31 31 31 30 31
Ground 31 31 31 31 30 30
Ice 31 31 31 30 31 31
Poison 31 31 30 31 30 30
Psychic 30 31 31 30 31 31
Rock 31 31 30 30 31 30
Steel 31 31 31 31 31 30
Water 31 31 31 30 30 31